Great advice! There is only one issue and I am honestly hoping this is just an unclear explation because I would be quite surprised that you got this wrong considering your line of work... Once a debt is charged off, it stays charged off. It can not be "re-activated", "re-aged" or "re-" anything. The law states that the Statute of Limitations (SOL) is fixed at the point which the debt is charged off and it stays the same no matter what. This won't change your credit score unless you can have that line of information removed from your credit report. A charged off debt stays a charged off debt whether you are paying on it or not.
Next, estimate your monthly spending habits for other expenses such as gas, groceries and entertainment. Create a limit, based on your income, of what you can spend in each of the different categories of expenses. For example, if you tend to spend $400 a month on groceries, try to stick to $300 a month on groceries by making changes like buying generic brands, using coupons, and resisting impulse purchases.